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參數資料
| 型號： | LX1721CDBTR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 60 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| 封裝： | PLASTIC, QSOP-44 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 378K |
| 代理商： | LX1721CDBTR |
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2001
Rev. 1.2a,2004-06-10
WWW
.Microse
m
i
.CO
M
AudioMAX
LX1721 / 1722
Class-D Stereo Power Amplifier Controller
PRODUCTION
I N T E GRA T ED
PR ODUC T S
DESCRIPTION
The LX1721/1722 is a monolithic high
performance Class-D stereo controller IC
designed for high efficiency or space
constrained audio requirements such as
portable or battery operated products,
automotive amplifiers, and multi-channel
multimedia computer and video game
applications.
This high frequency, full
audio
bandwidth
switching
power
amplifier controller offers dramatically
improved performance over Linfinity’s
previous generation amplifier products.
Enhancements include higher output
power, better SNR, lower noise floor, and
reduced THD.
Combined with output
power MOSFET’s and an output filter, the
LX1721/1722 is a complete Class-D audio
solution.
A complete audio amplifier module is
available to quickly evaluate the LX1721
or LX1722 stereo controller.
Simply
connect the amplifier to the power source,
audio signal, and speakers.
Reference
designs support a variety of requirements
including
multi
channel
systems,
subwoofers, satellite / subwoofer com-
binations and various speaker loads (2,
4, 8). The versatile amplifier solution
can easily be adjusted for frequency
response, optimized for efficiency and
performance, or designed to minimize
PCB area and component count.
The
LX1721/1722 is available in a space
saving 44-pin QSOP package.
(Continued Next Page)
IMPORTANT:
For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT H I GHLIGHT
LX1722
Stereo
FETs
LX1711
Mono
FETs
IN +
IN -
IN +
IN -
IN +
IN -
CLOCK
Left
Right
Subwoofer
2, 4, 8
Channel
1
Channel 2
Channel 3
7V - 25V
2.1 Audio Amplifier
Configuration
Output Power vs. Supply Voltage
1kHz, 4, THD+N=1%
KEY FEATUR ES
Integrated Switching Class-D
Stereo Controller IC
Full 20Hz-20kHz Audio
Bandwidth
High Fidelity (LX1721) Or
High Power (LX1722)
Versions Available
Single Supply Operation
THD+N <0.06% Typical
(1Wrms, 1kHz, 4)
Maximum Efficiency 80%-
85%
Output Power >60Wrms per
Channel (LX1722, 4, 1%
THD+N)
PSRR –70dB Typical
Differential Input To Minimize
Noise Effects
Supports Multi-Channel
Systems
Complete LXE1721or
LXE1722 Amplifier Evaluation
Module Available
44-Pin QSOP Package
APPLICATIONS
Multimedia Speakers
Surround Sound Game
Systems
Notebook Computers
Desktop Computers
Automotive Amplifiers And
Head units
Battery Operated Equipment
(Megaphone, Public Address
System)
Portable Audio (Boom Box)
Wireless Speakers
High Power Subwoofer
Automotive Audio Systems
Home Theatre
PACKAGE ORDER INFO
TJ (
°C)
VDD
DB
Plastic QSOP
44-Pin
-20 to 70
7V – 15V
LX1721CDB
-20 to 70
7V – 25V
LX1722CDB
Note: Available in Tape & Reel.
Append the letters “TR” to the part number. (i.e. LX1722CDBTR)
LL
XX
11
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22
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| LX1725ILQ-TR | 16 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LX1721EVALKIT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AudioMAX Products |
| LX1722 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Class-D Stereo Power Amplifier Controller |
| LX1722-150EVALKIT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AudioMAX Products |
| LX1722CDB | 制造商:Microsemi Corporation 功能描述: |
| LX1722CDBTR | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Class-D Stereo Power Amplifier Controller |
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